Home / 2,913.36-4,000.86-2,493.72

Finding the Fourth Proportional to 2,913.36, 4,000.86 and 2,493.72

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Solution

The fourth proportional to 2,913.36, 4,000.86 and 2,493.72 is: 3,424.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.36 : 4,000.86 = 2,493.72 : x
  2. Step 2: Convert to fraction form
    2,913.36/4,000.86 = 2,493.72/x
  3. Step 3: Cross multiply
    2,913.36x = 4,000.86 × 2,493.72
  4. Step 4: Simplify right side
    2,913.36x = 9,977,024.60
  5. Step 5: Solve for x
    x = 9,977,024.60/2,913.36
  6. Step 6: Final answer
    x = 3,424.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.